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units for Young Modulus

units for Young Modulus

units for Young Modulus

(OP)
Hello,

this is maybe a stupid question, but just to be sure.
Suppose my model is representing a microstructure with chosen unit-lenght "micrometers = 10^-06 m = 1 um".

should I also accordigly express the Young's MOdulus and all the stress values in N/um²?

for example from a typical value of E in Pascal of
400 GPa = 400 *10^9 N/m²

should I put (in the material definition)
400*10^9 N/m² * 10^-12 m²/um² = 400 * 10^-3 N/um² ?

I think the only important think is consistency of units, so it is not mandatory to use Pascal in this case, right?

many thanks, Alex

RE: units for Young Modulus

Yep, and your results will be in the same units, ie. micrometers and Newtons per microdiddlymetres squared.

corus

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